The heart, vessels and blood flow
Grade 7 Science Worksheet - Building Confidence
Circle the best answer.
Ari studies a circulation drawing. Part X carries blood away from the heart. What is part X called?
- A vein
- An artery
- A capillary
- A valve
In Bo's drawing, part Y carries blood back to the heart. What is part Y called?
- An artery
- A capillary
- A lung
- A vein
In Esme's drawing, part Z is a tiny vessel, one cell thick, where oxygen passes to body cells. What is it called?
- An artery, as it carries oxygen
- The heart
- A capillary
- A vein
Which way do veins carry blood, Kira?
- Away from the heart
- Back to the heart
- To the brain and nowhere else
- Into the stomach
Blood leaves the heart for the arms and legs. Which vessels does it travel in first, Luz?
- Arteries
- Capillaries, then arteries
- Veins
- The windpipe
Milo learns the heart has two atria and two ventricles. What is the heart's main job?
- To make oxygen for the blood
- To pump blood
- To store food
- To clean the air
Read this first
Numbered path, not to scale
1 body → 2 right atrium → 3 right ventricle → 4 lungs → 5 left atrium → 6 left ventricle → 7 body.
Where does the right side of the heart pump blood, Noah?
- To the lungs
- Back into the right atrium
- To the stomach
- To the body
After Ren drinks water and breathes in, blood carries things to the body's cells. Which list fits?
- Air and whole bites of food
- Sound and light
- Oxygen and nutrients
- Just water
Numbered path, not to scale
1 body → 2 right atrium → 3 right ventricle → 4 lungs → 5 left atrium → 6 left ventricle → 7 body.
Where does blood pick up oxygen, Tala?
- In the left atrium
- In the right ventricle
- In the body's muscles
- In the lungs
Blood returning from the body reaches the right atrium. Where does it go next, Zee?
- Straight back out to the body
- To the left ventricle
- To the stomach
- To the right ventricle